Module: TruncateHTML

Defined in:
lib/truncateHTML.rb

Class Method Summary collapse

Class Method Details

.truncate(text, options = {}) ⇒ Object

Like the Rails truncate helper but doesn’t break HTML tags, entities, and optionally words.



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# File 'lib/truncateHTML.rb', line 27

def self.truncate(text, options={})
  return if text.nil?

  max_length = options[:max_length] || 40
  ellipsis = options[:ellipsis] || "..."
  words = options[:words] || false
  status = options[:status] || false
  # use :link => link_to('more', post_path), or something to that effect

  doc = Hpricot(text.to_s)
  ellipsis_length = Hpricot(ellipsis).inner_text.length
  content_length = doc.inner_text.length
  actual_length = max_length - ellipsis_length

  if content_length > max_length
    truncated_doc = doc.truncate(actual_length)

    if words
      word_length = actual_length - (truncated_doc.inner_html.length - truncated_doc.inner_html.rindex(' '))
      truncated_doc = doc.truncate(word_length)
    end

    #XXX The check here has to be blank as the inner_html for text node is blank
    return_string = truncated_doc.inner_html + ellipsis
    return_string += options[:link] if options[:link]
    return_status = true
  else
    return_string = text.to_s
    return_status = false
  end

  return status ? [return_string, return_status] : return_string
end